Visit one will include reviewing and signing the written informed consent form, obtaining relevant demographic data, and then routine blood work. The baseline frequency, duration and type of seizures our subjects experience will be documented, as will their current antiepileptic medications. Baseline history and a physical and neurological examination will be performed, including vital signs. Testing will include baseline measurements of cognition, function (activities of daily living), and behavior. Cognitive testing will include Folstein's Minimental State examination (MMSE), and the ADAS-cog. Our overall assessment will include the Modified Schwab and England Activities of Daily Living Scale. Behavioral assessment will include Tariot's Behavior Ratings Scale and the Cohen-Mansfield Agitation Inventory (CMAI; long form). Levetiracetam will be initiated and instructions for follow up will be given. Because the goal is cognitive tolerability, Levetiracetam will be used as either an add-on agent or as primary monotherapy.